SLE5528 contact IC card original imported 4428 contact IC card

型号：

IC卡

尺寸：

85.5*54*0.84（可定制）

材料：

PVC,PET,PETG等

The chip card is an encrypted card with read data, write data, data protection and password operations. At present, this type of card is mainly suitable for telecommunications cards, smart cards, integrated circuit cards, membership cards, electronic tickets, VIP cards, medical insurance, transportation, schools, etc. 1. Electrical performance
Bit
Byte direct addressing
The low address byte data is set with an unrecoverable write protection bit
Bit protection bit
Write data operation end flag
Standard-compliant reset response
Byte erase then write time: standard value
Minimum number of write-erase cycles
Data retention period: years
Two , Confidentiality features
Three-byte user password.
All data can only be read and cannot be rewritten until the password is correct.
After verifying that the password is correct, you can change the data including the password.
3. Precautions for writing programs
Excluding the bytes in the write protection zone, programmers can only operate the bytes in the write protection zone. The write protection zone has only one writing opportunity and is generally not used.
Please note that each time you rewrite the password, the password will only take effect if you power off the card and then power it on again.
, the password is bytes, that is, single digits. Generally, the initial password is converted into a hexadecimal system of six. The commonly used chips on the market are Siemens. There are also common applications using domestic Fudan and hotel door locks and stored value cards. System application
4. Main indicators
Byte r organization method
Bit protection memory composition method
Byte user password error count: times
Temperature range: ℃ ~ +℃
At least 10,000 times of erasing and writing
At least one year data retention period
Minimum write/erase time:
Working voltage:
Supply current:
5. Confidentiality features
, Each byte in the write protection zone (previous byte) can be individually write-protected. After write protection, the content cannot be changed (that is, the data is solidified)
, All data before the password is correct All can be read. If necessary, the data can be properly encrypted.
After checking that the password is correct, you can write or modify it.
After the three-byte user password is verified to be correct, it can be changed and is valid until the card is powered off.
. The initial value of the password error counter is the number of password verification errors and will be decremented. If the counter value is 0, the card will be automatically locked. The data can only be read out and cannot be changed or the password verification can be performed. If it is not zero, there will be one password verification. Correct to restore to initial value.
, byte address -, - have been written by the manufacturer before leaving the factory and cannot be changed.